Book Image

Mastering Flask

By : Jack Stouffer
Book Image

Mastering Flask

By: Jack Stouffer

Overview of this book

Starting from a simple Flask app, this book will walk through advanced topics while providing practical examples of the lessons learned. After building a simple Flask app, a proper app structure is demonstrated by transforming the app to use a Model-View-Controller (MVC) architecture. With a scalable structure in hand, the next chapters use Flask extensions to provide extra functionality to the app, including user login and registration, NoSQL querying, a REST API, an admin interface, and more. Next, you’ll discover how to use unit testing to take the guesswork away from making sure the code is performing as it should. The book closes with a discussion of the different platforms that are available to deploy a Flask app on, the pros and cons of each one, and how to deploy on each one.

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Mastering Flask
Jack Stouffer
Sep, 2015 | 288 pages
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Table of Contents (20 chapters)
Mastering Flask
Mastering Flask
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started
Getting Started
Version control with Git
Python package management with pip
Dependency sandboxing with virtualenv
The beginning of our project
Summary
2
Creating Models with SQLAlchemy
Creating Models with SQLAlchemy
Setting up SQLAlchemy
Our first model
CRUD
Relationships between models
The convenience of SQLAlchemy sessions
Database migrations with Alembic
Summary
3
Creating Views with Templates
Creating Views with Templates
Jinja's syntax
Creating our views
Flask WTForms
Summary
4
Creating Controllers with Blueprints
Creating Controllers with Blueprints
Request setup, teardown, and application globals
Error pages
Class-based views
Blueprints
Summary
5
Advanced Application Structure
Advanced Application Structure
The project as a module
Application factories
Summary
6
Securing Your App
Securing Your App
Setting up
Using the session
Flask Login
Summary
7
Using NoSQL with Flask
Using NoSQL with Flask
Types of NoSQL databases
RDBMS versus NoSQL
MongoDB in Flask
Leveraging the power of NoSQL
Summary
8
Building RESTful APIs
Building RESTful APIs
What is REST
Setting up a RESTful Flask API
GET requests
POST requests
PUT requests
DELETE requests
Summary
9
Creating Asynchronous Tasks with Celery
Creating Asynchronous Tasks with Celery
What is Celery?
Setting up Celery and RabbitMQ
Creating tasks in Celery
Running Celery tasks
Monitoring Celery
Creating a reminder app
Creating a weekly digest
Summary
10
Useful Flask Extensions
Useful Flask Extensions
Flask Script
Flask Debug Toolbar
Flask Cache
Flask Assets
Flask Admin
Flask Mail
Summary
11
Building Your Own Extension
Building Your Own Extension
Creating a YouTube Flask extension
Modifying the response with Flask extensions
Summary
12
Testing Flask Apps
Testing Flask Apps
What are unit tests?
How does testing work?
Unit testing the application
User interface testing
Test coverage
Test-driven development
Summary
13
Deploying Flask Apps
Deploying Flask Apps
Deploying on your own server
Deploying on Heroku
Deploying on Amazon web services
Summary
Index
Index

About the Reviewers

Nidal Alhariri is an entrepreneur, a full-stack computer programmer, and a technology consultant. He is the creator of Enferno Framework (a Python web framework based on Flask).

He is also the founder and CTO of Level 09 Studios, a web and software development agency based in Dubai and Berlin, which serves clients from different backgrounds, such as international organizations, hotels, luxury real estate, satellite TV, publishing, and many more.

He has been the driving force behind a lot of software applications and web systems for nearly 12 years now and has an excellent record of delivering projects on time and on budget. He has a roster of delighted clients and deep ties to the development community.

Pedro Alejandro Baumann is a cofounder of Athelas Perú, psychotherapist, sysAdmin, and self-taught programmer. He works as a backend developer and sysAdmin for Athelas. He also loves to learn about new technologies, but especially loves to work with Python and dabbles with a few open source projects in his spare time (he mostly adds ZURB foundation to every Flask project that might require it!). He is constantly juggling projects of various kinds. Currently, he is developing a project to inform parents and educators about the reality of video gaming and also writing for a Peruvian coding blog (De Código y Algo más).

I would like to thank my wife, Lucia, who always encouraged me to become a programmer and to make a living out of it. I would also like to thank my co-workers who let me experiment with any technology that I feel like working on at that time.

Ben Chaimberg is a student at the University of Chicago. He was introduced to programming at a young age by his father and hasn't stopped coding since. He is currently working on a full-stack web application in Flask while pursuing his schooling in mathematics.

I would like to thank my parents for their constant support and commitment, Max for his camaraderie and patience, and Mrs. Kono for her inspiration and concern.

Ayun Park is a 19-year-old software engineer from South Korea. He has been programming in Python since 2011. He can be found at http://parkayun.kr.

Rotem Yaari is a software engineer from Israel who's been developing software in Python since 2001. He is actively involved in several open source Python projects, such as the Slash testing framework, the Weber Flask webapp framework, Flask-Loopback, and others.

For the past 8 years, Rotem has been working on backend infrastructure development for data storage start-ups. He specializes in complex software integrations using web services and in high availability infrastructure.

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